Answer:
B
Explanation:
as it clearly shows on the graph
Commensalism. the symbiont benefits and the host is unharmed.
The correct term is ejaculation
Ejaculation refers to the discharge of semen from the male reproductory tract, usually accompanied by orgasm. It is the final stage and natural objective of male sexual stimulation, and an essential component of natural conception.
C,they are identified by the texture and grain size
